From: Kiryl Shutsemau <kas@kernel.org>
To: "Edgecombe, Rick P" <rick.p.edgecombe@intel.com>
Cc: "Hansen, Dave" <dave.hansen@intel.com>,
"Fang, Peter" <peter.fang@intel.com>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"bp@alien8.de" <bp@alien8.de>,
"Li, Xiaoyao" <xiaoyao.li@intel.com>,
"x86@kernel.org" <x86@kernel.org>,
"sathyanarayanan.kuppuswamy@linux.intel.com"
<sathyanarayanan.kuppuswamy@linux.intel.com>,
"mingo@redhat.com" <mingo@redhat.com>,
"dave.hansen@linux.intel.com" <dave.hansen@linux.intel.com>,
"tglx@kernel.org" <tglx@kernel.org>,
"linux-coco@lists.linux.dev" <linux-coco@lists.linux.dev>,
"hpa@zytor.com" <hpa@zytor.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"binbin.wu@linux.intel.com" <binbin.wu@linux.intel.com>
Subject: Re: [PATCH v2 2/2] virt: tdx-guest: Allocate Quote buffer dynamically
Date: Wed, 22 Jul 2026 13:00:35 +0100 [thread overview]
Message-ID: <amCv00f5Q6QlztyY@thinkstation> (raw)
In-Reply-To: <741eb8b8b83dd10d39f304133a7625f4232ab793.camel@intel.com>
On Tue, Jul 21, 2026 at 04:43:57PM +0000, Edgecombe, Rick P wrote:
> BUT, is this number coming from the untrusted host or the TDX module? I cant
> find TDCS_QUOTE_MAX_SIZE in the docs.
I cannot find it too. Peter, any pointers where it is documented
publicly?
> If it is coming from the TDX module then
> we are not talking about security considerations at all. It's just a functional
> "do you want to know if things are failing". Not sure why this one would be
> special in that regard. If we think it will fail so often that we don't want a
> warning, then we probably need another solution.
Silent makes no sense to me. We are talking about attestation. If
attestation fails the TD is functionally dead: it cannot obtain secrets.
--
Kiryl Shutsemau / Kirill A. Shutemov
next prev parent reply other threads:[~2026-07-22 12:00 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-17 21:43 [PATCH v2 0/2] tdx-guest: Make Quote buffer size dynamic Peter Fang
2026-07-17 21:43 ` [PATCH v2 1/2] x86/tdx: Add helper to query maximum TD Quote size Peter Fang
2026-07-22 13:21 ` Binbin Wu
2026-07-17 21:43 ` [PATCH v2 2/2] virt: tdx-guest: Allocate Quote buffer dynamically Peter Fang
2026-07-17 21:55 ` sashiko-bot
2026-07-20 13:35 ` Dave Hansen
2026-07-21 6:49 ` Peter Fang
2026-07-21 13:48 ` Dave Hansen
2026-07-21 16:43 ` Edgecombe, Rick P
2026-07-22 7:36 ` Peter Fang
2026-07-22 12:00 ` Kiryl Shutsemau [this message]
2026-07-22 6:39 ` Peter Fang
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